Fix lombok version (#200)

- It was not possible to run EI-frontend with openJDK. Needed
  to update lombok in order to run.

Author: erik-edling

pom.xml

@@ -95,7 +95,7 @@
         <dependency>
             <groupId>org.projectlombok</groupId>
             <artifactId>lombok</artifactId>
-            <version>1.16.20</version>
+            <version>1.18.6</version>
             <scope>provided</scope>
         </dependency>
         <dependency>